GB966843A - Process for the production of isothiocyanates - Google Patents
Process for the production of isothiocyanatesInfo
- Publication number
- GB966843A GB966843A GB26399/63A GB2639963A GB966843A GB 966843 A GB966843 A GB 966843A GB 26399/63 A GB26399/63 A GB 26399/63A GB 2639963 A GB2639963 A GB 2639963A GB 966843 A GB966843 A GB 966843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isothiocyanates
- general formula
- pentasulphide
- araliphatic
- cycloaliphatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C331/00—Derivatives of thiocyanic acid or of isothiocyanic acid
- C07C331/16—Isothiocyanates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Isothiocyanates of the general formula R-N=C=S, wherein R is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, which may be substituted by halogen atoms or alkyl, haloalkyl and/or nitro groups, are produced by heating an isocyanide dihalide of the general formula <FORM:0966843/C1/1> wherein X is a halogen atom, with a pentasulphide of the general formula Y2S5, wherein Y is a phosphorus, arsenic or antimony atom, in the presence of an inert solvent. The reactants are expediently added to the inert solvent, the mixture heated, generally at 80 DEG -220 DEG C. and preferably at 100 DEG -150 DEG C., until the pentasulphide is completely dissolved and the isothiocyanate isolated by distillation. Said isothiocyanates have nenatocidal properties (see Division A5). Specification 942,520 is referred to.ALSO:Isothiocyanates of the general formula-R-N=C=S, wherein R is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical, which may be substituted by halogen atoms or alkyl, haloalkyl and/or nitro groups (see Division C2), have strong nematocidal properties and are especially useful for combating phylopathogenic nematodes. They are used as such or in the form of emulsifiable concentrates, wettable powders, pastes, soluble powders, dusts and granulates which may contain other active ingredients. Specified emulsifiers for the isothiocyanates in said formulations include non-ionic and anionic emulsifiers. Specification 942,520 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF37371A DE1174772B (en) | 1962-07-20 | 1962-07-20 | Process for the production of isothiocyanates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB966843A true GB966843A (en) | 1964-08-19 |
Family
ID=7096856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26399/63A Expired GB966843A (en) | 1962-07-20 | 1963-07-03 | Process for the production of isothiocyanates |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3293276A (en) |
| CH (1) | CH413819A (en) |
| DE (1) | DE1174772B (en) |
| GB (1) | GB966843A (en) |
| NL (1) | NL295568A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3420872A (en) * | 1964-06-05 | 1969-01-07 | Monsanto Co | Diphenethylbenzene tetracarboxylic acid esters |
| US3420870A (en) * | 1964-06-05 | 1969-01-07 | Monsanto Co | Diphenethylbenzene mixed ester carboxamides |
| CN1221172C (en) * | 1999-05-10 | 2005-10-05 | 伊洛弗制糖有限公司 | Compsns. and process for nematode control |
| CN116396196B (en) * | 2023-03-15 | 2024-04-23 | 华南理工大学 | Method for preparing amido isothiocyanate/amido thiourea compound in one pot |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1993040A (en) * | 1932-12-29 | 1935-03-05 | Grasselli Chemical Co | Parasiticide derived from higher alcohols |
| US2080770A (en) * | 1933-12-27 | 1937-05-18 | Firm Kessler Chemical Corp | Toxic agents |
| US2029959A (en) * | 1934-07-28 | 1936-02-04 | Charles H Lewis | Process of water purification |
| US2226984A (en) * | 1938-01-07 | 1940-12-31 | Goodrich Co B F | Accelerator of vulcanization |
| US2217611A (en) * | 1938-03-29 | 1940-10-08 | Hercules Powder Co Ltd | Terpene-cyanoacyl compound and method of producing the same |
| US2217612A (en) * | 1939-12-27 | 1940-10-08 | Hercules Powder Co Ltd | Terpene-cyanoacyl compound and method of producing same |
| US2618582A (en) * | 1948-11-01 | 1952-11-18 | Union Oil Co | Pest control |
| US2642373A (en) * | 1950-03-25 | 1953-06-16 | Monsanto Chemicals | 2-hydroxyethyl 2-phenylethyl sulfide as a fungicide |
| US2681358A (en) * | 1952-05-10 | 1954-06-15 | Du Pont | Process for preparing diisothiocyanates |
-
0
- NL NL295568D patent/NL295568A/xx unknown
-
1962
- 1962-07-20 DE DEF37371A patent/DE1174772B/en active Pending
-
1963
- 1963-07-02 US US292497A patent/US3293276A/en not_active Expired - Lifetime
- 1963-07-02 CH CH817963A patent/CH413819A/en unknown
- 1963-07-03 GB GB26399/63A patent/GB966843A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH413819A (en) | 1966-05-31 |
| NL295568A (en) | |
| DE1174772B (en) | 1964-07-30 |
| US3293276A (en) | 1966-12-20 |
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